Guard for bearings



April 13 1926. 1,580,701

C J. TRAVERS GUARD FOR BEARINGS Filed April 14. 1922 v Patented Apia.413, 1926.,

ST W.

PATE

I. i CHARLES J. TRAVERS, 01? PORT WASHINGTON, WISCONSIN, ASSIGNOR TOGILSON MANUFACTURING COMPANY, OF PORT WASHINGTON,

TION OF WISCONSIN.

GUARD roa nnnnmes.

WISCONSIN, A CORPORA- Application filed April 14, 1922. Serial'No.552,778.

To all wkomc't magz concern-i I f Be it known that I, CHARLES J TRAvnRs,,a citizen of the United States, and resident of -Port Washington, inthe .county of plete exclusion of gritand other foreign sub 15 stanceswhich create friction and wear down the parts. i

In the novel device, provision is made of a compressible annulussugrounding the rotary shaft, metallic members contacting with the 2faces of the a nulus and means for moving these metallio memberstogether to cause the compressible. material to press 'against theshaft. In this way, all possibility of dirt traveling along the shaftand. getting into 2 the bearin sis removed. A suitable cap is providedorqsupporting the guard so that thebearings are entirely protected fromdust. 'An important object of the inven'tionjisthe revision of means forreadily adjustl0- ingt e forceexerted on the compressiblematerial -todirect it against the shaft. An additional object "is the H he dustguard in aiself contained unit so that it maybe manufactured and soldsepallirately from the bearings and readily placed in position, thepartsof the guard being asr sembled in one unitary structure.

Additional objectsare the provision of a device sim Is to manufactureand durable. [0 Other 0 jects'andadvantages will appear as thedescription-proceeds. [Reference is had to the accompanying drawings,in-which J v Figure l'is a central cross section of the l5 dust guard asapplied to" a' ball bearin and Figure 2 is an elevation of the guam l;Transmission case is provided with-a cap -11 suitably securedthereto bybolts 12."

' A flange, 13 is, inwardlydirected from the i0 cap and inte' a1 with anupstanding collar; '14. 'A-rotata le shaft 15is secured to a ear 16 bykey 17 and bearing 18 is mounte on the shaft. In the dust guard, ashield 19 is provided with a flange 20 contacting with provision of herhaving conical wal flange 13 on one side, and bearing 21 on the 5:

other. The outer surface of flange 20 and bearing '21 contacts with theinner surface of collar 14 so that a rigid structure results. V Anannulus 22 of felt or the like compressible material rests on aninwardly'directed 6( flange 23 of the shield, and a washer 24 abuts.against the other side of the annulus, screws 25 being directed thruflange 23 and washer 24 for, compressing the felt against shaft 15.

y In assembling the device, the shield, which 6t is self contained, asis apparent, is brought into its position with flange 2O incontactwithflange 13, then cap 11 is moved relative- 1y to the hearings to theposition shown in Figure 1. Y Obviously the dust guard is not limited tothe specific bearing shown,- as a roller bearing,"or-any ty e ofbearihg,might be similarly protecte by the guard, I

During the operation of the device, the" rotation'of shaft 15 will tendgradually to wear away the annnlus 22. By thev mere adjustment by 'ascrew driver, the screws cause washer 24 .to approach the' fiange 23 andthe annulus is directed inwardly against .the shaft. In the constructiondescribed, the bearing is shown'as applied to a transmis-Y, sion case,but the invention is not'limited to this s ecific' application In thisembodi- Iment, however, it will be noted that there is no possibility ofdust. or other dirt getting to the bearings,-as the dust'gua id Protects.one side and the other side of the bearings is protected by thetransmission case.

Where both sides of a hearing are exposed,

general structurei of the a pair of guards may be utilized. 7

- While a preferred embodiment of the invention has been illustrated anddescribed;

' it is to be understood that the present inven-. 5 tion is not confinedto such specific embodi ment, but may be otherwise embodied witli in thes irit of the invention and the scope of the ollowing claim, and it willfurther I be understood that asubstantial range of 1 equivalence iscontemplated.

\Iclaim: g The combination of a shaft, a bearing therefor, a support forsaid bearinghaving a. flange extending inwardly and located closelyadjacent theend of said bearing, and a. dust guard comprisin acup-shaped mem- 1 Is and ha'ying a central aperture for said shaftandhaving an throughsaid fibrous washer and threaded 10 outer flangelocated in binding relation beinto; said metallic washer and freefromsaid tween the end of said bearing and the flange bearing a and havingheads accessible from of said bearing support, a fibrous washer theouter side of said cup-shaped member.

6-;seated Within said cup-shaped member in\ In testimony that I claimthe foregoing I contact with the conical walls, a metallic have hereuntoset my hand at Port Washing- 15 L washer surrounding said shaft and inconton, inthe county of Ozaukee and 'State of tact with said fibrouswasher, and screws car- Wisconsin.

ried v by said. cup-shaped portion passing CHARLES TRAVERS.

